NM_000843.4:c.1308T>C

Variant names:

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_000843.4(GRM6):c.1308T>C(p.Thr436Thr) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.997 in 1,614,002 control chromosomes in the GnomAD database, including 802,671 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.98 ( 73899 hom., cov: 33)

Exomes 𝑓: 1.0 ( 728772 hom. )

Consequence

GRM6
NM_000843.4 synonymous

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:6

Conservation

PhyloP100: -2.68

Publications

14 publications found

Variant links:

Genes affected

GRM6 (HGNC:4598): (glutamate metabotropic receptor 6) L-glutamate is the major excitatory neurotransmitter in the central nervous system and activates both ionotropic and metabotropic glutamate receptors. Glutamatergic neurotransmission is involved in most aspects of normal brain function and can be perturbed in many neuropathologic conditions. The metabotropic glutamate receptors are a family of G protein-coupled receptors, that have been divided into 3 groups on the basis of sequence homology, putative signal transduction mechanisms, and pharmacologic properties. Group I includes GRM1 and GRM5 and these receptors have been shown to activate phospholipase C. Group II includes GRM2 and GRM3 while Group III includes GRM4, GRM6, GRM7 and GRM8. Group II and III receptors are linked to the inhibition of the cyclic AMP cascade but differ in their agonist selectivities. Mutations in this gene result in congenital stationary night blindness type 1B. [provided by RefSeq, May 2018]

GRM6 links:

ENSG00000254035 (HGNC:):

ENSG00000254035 links:

ZNF454 (HGNC:21200): (zinc finger protein 454) Enables sequence-specific double-stranded DNA binding activity. Predicted to be involved in regulation of transcription by RNA polymerase II. Predicted to be active in nucleus. [provided by Alliance of Genome Resources, Apr 2022]

ZNF454 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-1.0).

BP6

Variant 5-178988981-A-G is Benign according to our data. Variant chr5-178988981-A-G is described in ClinVar as Benign. ClinVar VariationId is 198105.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BA1

GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.994 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
GRM6	NM_000843.4 link	c.1308T>C	p.Thr436Thr	synonymous_variant	Exon 7 of 11	ENST00000517717.3	NP_000834.2	O15303
ZNF454	XR_007058600.1 link	n.5644-766A>G		intron_variant	Intron 5 of 5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
GRM6	ENST00000517717.3 link	c.1308T>C	p.Thr436Thr	synonymous_variant	Exon 7 of 11	5	NM_000843.4	ENSP00000430767.1		O15303

Frequencies

GnomAD3 genomes

AF:

0.985

AC:

149841

AN:

152130

Hom.:

73843

Cov.:

show subpopulations

Gnomad AFR

AF:

0.947

Gnomad AMI

AF:

1.00

Gnomad AMR

AF:

0.996

Gnomad ASJ

AF:

1.00

Gnomad EAS

AF:

1.00

Gnomad SAS

AF:

1.00

Gnomad FIN

AF:

1.00

Gnomad MID

AF:

0.997

Gnomad NFE

AF:

1.00

Gnomad OTH

AF:

0.989

GnomAD2 exomes

AF:

0.996

AC:

248874

AN:

249816

AF XY:

0.997

show subpopulations

Gnomad AFR exome

AF:

0.947

Gnomad AMR exome

AF:

0.998

Gnomad ASJ exome

AF:

1.00

Gnomad EAS exome

AF:

1.00

Gnomad FIN exome

AF:

1.00

Gnomad NFE exome

AF:

1.00

Gnomad OTH exome

AF:

0.999

GnomAD4 exome

AF:

0.999

AC:

1459591

AN:

1461754

Hom.:

728772

Cov.:

AF XY:

0.999

AC XY:

726213

AN XY:

727162

show subpopulations

African (AFR)

AF:

0.946

AC:

31660

AN:

33476

American (AMR)

AF:

0.998

AC:

44624

AN:

44716

Ashkenazi Jewish (ASJ)

AF:

1.00

AC:

26131

AN:

26132

East Asian (EAS)

AF:

1.00

AC:

39698

AN:

39700

South Asian (SAS)

AF:

1.00

AC:

86212

AN:

86232

European-Finnish (FIN)

AF:

1.00

AC:

53398

AN:

53398

Middle Eastern (MID)

AF:

0.998

AC:

5714

AN:

5726

European-Non Finnish (NFE)

AF:

1.00

AC:

1111945

AN:

1111988

Other (OTH)

AF:

0.997

AC:

60209

AN:

60386

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.481

Heterozygous variant carriers

125

250

376

501

626

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

21670

43340

65010

86680

108350

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.985

AC:

149957

AN:

152248

Hom.:

73899

Cov.:

AF XY:

0.986

AC XY:

73420

AN XY:

74430

show subpopulations

African (AFR)

AF:

0.947

AC:

39362

AN:

41556

American (AMR)

AF:

0.996

AC:

15242

AN:

15308

Ashkenazi Jewish (ASJ)

AF:

1.00

AC:

3472

AN:

3472

East Asian (EAS)

AF:

1.00

AC:

5132

AN:

5132

South Asian (SAS)

AF:

1.00

AC:

4830

AN:

4830

European-Finnish (FIN)

AF:

1.00

AC:

10622

AN:

10622

Middle Eastern (MID)

AF:

0.997

AC:

293

AN:

294

European-Non Finnish (NFE)

AF:

1.00

AC:

68005

AN:

68012

Other (OTH)

AF:

0.989

AC:

2087

AN:

2110

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.505

Heterozygous variant carriers

120

241

361

482

602

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

916

1832

2748

3664

4580

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.991

Hom.:

43693

Bravo

AF:

0.983

Asia WGS

AF:

0.997

AC:

3467

AN:

3478

EpiCase

AF:

1.00

EpiControl

AF:

1.00

ClinVar

Significance: Benign

Submissions summary: Benign:6

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:3

Nov 23, 2014

Eurofins Ntd Llc (ga)

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+

Significance:Benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

Diagnostic Laboratory, Department of Genetics, University Medical Center Groningen

Significance:Benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

not provided

Benign:2

Mar 03, 2015

GeneDx

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Feb 03, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Congenital stationary night blindness 1B

Benign:1

Aug 10, 2021

Genome-Nilou Lab

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-1.0

CADD

Benign

0.021

(source)

DANN

Benign

0.32

PhyloP100

-2.7

Mutation Taster

=99/1

polymorphism (auto)

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over